A Forgotten Heart by Lacy Williams

Rancher Nick McGraw had his dreams of teaching shattered and lost his chance for true love in one fell swoop. Years later, he’s finally moved on. The best Christmas gift he can give himself is a chance for a new start—with a mail-order bride of his own choosing.
After he broke her heart, schoolmarm Elsie Atchinson hoped she would never see Nick again. But moments after they come face to face, Nick is attacked and left for dead in the midst of a white-out blizzard. Elsie can’t abandon him in his time of need.
There’s just one problem. The Nick who wakes up with his head wrapped in bandages doesn’t remember leaving Elsie. This Nick only remembers falling in love with her. But Elsie knows that once Nick regains his memory, their fragile reunion will be shattered, leaving her heart broken once more.

And when Nick’s attackers threaten the family ranch, things only get more complicated between them. It may just take a Christmas miracle for them to find their way back to the love they once shared and work together to save everything they hold dear.